DigiKey - SMD resistor sizes 0201, most 0402, and some 0603 are not marked due to their small physical size. Resistance verification on these will have to be done by an actual
SMD Resistor Package Details Power Rating, Size, Dimension & Value - Dip Electronics LAB
What Are The Differences Between Chip, SMD & Trimmable Resistors?
Resistor Packing Specification DIP SMD Resistor Sizes and Packages 【Synton-Tech】